What exact issues are you having? By install, do you mean it installs, but doesn’t run, or are you having another issue?
I am actually having that same issue. It looks like SEVERAL people are. I haven’t had the download option for months, and this is the only game that does it for me. OSes I’ve seen people mention are Windows 10, Windows 11, mac, and Linux. So it’s def not a small thing, and we all report that this is the ONLY game that does it. No mention or help from the devs about this at all, even in the official bug report thread. I suggest you go over there and voice it though, it’s more likely to be seen.